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Sharpless 308: Star Bubble (apod.nasa.gov)

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[–]HStark 548 ポイント549 ポイント  (70子コメント)

If I'm not misinterpreting this NASA page, that thing is so big that even from 5,200 light years away it still takes up more of our sky than a full moon. Imagine how different the human experience and our scientific understanding would be if we could just see this thing with the naked eye?

[–]jeepbrahh 185 ポイント186 ポイント  (56子コメント)

If i could see any other celestial object, other than the moon and sun, I would be so happy. Maybe like a Mars flyby-close encounter.

[–]limefog 82 ポイント83 ポイント  (27子コメント)

I mean, you can (even with the naked eye), just not in detail.

[–]jackkerouac81 [スコア非表示]  (26子コメント)

depends on your light pollution...

[–]limefog [スコア非表示]  (7子コメント)

Depends also on the celestial object. However, if we're talking about any celestial object other than the moon and sun, Venus is visible in just about any location because of how bright it is. I live in a relatively large city (450,000-ish people) with reasonably bad light pollution, and I can also spot Mars and Jupiter with the naked eye reasonably often.

[–]BatusWelm [スコア非表示]  (12子コメント)

I live in a city and can clearly see Mars and Venus. Maybe other cities are a lot brighter.

[–]6931 [スコア非表示]  (10子コメント)

In London England you can rarely see stars. The sky is an orange sheet all the time.

[–]bathtub_farts [スコア非表示]  (6子コメント)

I'm sorry dude. Stars are fucking beautiful

[–]mynameispaulsimon [スコア非表示]  (4子コメント)

How sad is it that my next vacation plan is mainly based around going somewhere where I can see the stars? I feel I'm missing an important part of the human experience.

[–]DerpZarf [スコア非表示]  (0子コメント)

I live in a low population area where I can see stars any time it's not cloudy, and I still plan outings based on light pollution. Your method of planning vacations is not sad in the slightest, and don't ever let anybody shame you because of it.

Seeing a dark sky, with hundreds of thousands of stars, more revealing themselves as you get used to the darkness, is a life changing experience. My fondest memories of youth are from lying in a field off the beaten path, staring into the milky way. Mysterious lights above, thunder to the distant west, and not another soul for many leagues.

Makes you feel small.

[–]approx- [スコア非表示]  (0子コメント)

I live about 10 minutes outside of a medium sized city. It is so wonderful to look up and just see a sky absolutely brimming with starlight when I walk out my front door.

コメントをもっと表示する (2 返事)

    [–]NotProgramSupervisor [スコア非表示]  (0子コメント)

    I can't remember the last time I've seen those

    [–]jaredjeya [スコア非表示]  (0子コメント)

    One of the things I miss the most when I leave my small university city (where a 10 minute cycle from my room will put me in the "countryside") and move back home to London in the holidays is being able to look up at night sky and see the constellations.

    Two of my best friends there are super into astronomy and one of them always points out things in the sky to me - I really enjoyed seeing Mars and Venus next to each other last month, although Venus is now too close to the Sun to be observed at night.

    We also go to the observatory sometimes and look through the telescope - I saw Jupiter last time in some detail, along with all 4 moons - and when I come out of the dome, I can see so much detail in the sky with my eyes adjusted properly to the dark and with little light pollution.

    And then I come back here to London and I can see the Big Dipper if I'm lucky.

    [–]RickChanOnTheWeb [スコア非表示]  (1子コメント)

    Bizarre, can you take a pic in a few hours?

    [–]articleofpeace [スコア非表示]  (0子コメント)

    It's not weird in England. I can count on two hands the nights I remember where I could clearly see the stars. And I lived in a town - not a city - for the first 17 years of my life.

    [–]thebeavertrilogy [スコア非表示]  (0子コメント)

    Right now Jupiter is super bright because if it's proximity. It will be closest on April 7th, I think.

    [–]chopyhop [スコア非表示]  (1子コメント)

    I'm not sure why people are chiming in to cast doubt on your light pollution comment. If you look at the sky from London at night you are lucky if you can see anything at all. So yes, if anyone lives in a city and you can still see the stars great for you, but there are cities out there with a lot worse light pollution.

    [–]Dwbtwo [スコア非表示]  (0子コメント)

    This is a digitally colored image.

    "the expansive image is dominated by the glow of ionized oxygen atoms mapped to a blue hue."

    コメントをもっと表示する (2 返事)

      [–]602Zoo [スコア非表示]  (4子コメント)

      You can see the spiral arms of the milky way and the Andromeda Galaxy if you don't have a bunch of light pollution

      [–]HiimCaysE [スコア非表示]  (3子コメント)

      You can see the band of the Milky Way across the sky and the shape of Andromeda with the naked eye, but not the arms individually in either case.

      [–]602Zoo [スコア非表示]  (2子コメント)

      Well the band of the milky way you see is an individual arm

      [–]HiimCaysE [スコア非表示]  (1子コメント)

      It's all (or most) of the arms... the band is the entire galaxy because our point of view is from one of the outermost bands looking in.

      [–]602Zoo [スコア非表示]  (0子コメント)

      Ya I understand that but we're looking at a spiral arm. Doesn't what part of the milky way we see change depending on where and when you're looking? Sometimes we're looking out sometimes we're looking in

      [–]Morphie [スコア非表示]  (10子コメント)

      I always hope Betelgeuse or some other save distance star goes supernova in our lifetime. That would be so cool to see, and hopefully bring the planet together.

      [–]cheeriebomb [スコア非表示]  (9子コメント)

      Good news! Just hang around until 2022 and that will happen. https://www.google.com/amp/relay.nationalgeographic.com/proxy/distribution/public/amp/2017/01/see-star-explode-2022-nova-cygnus-skywatching-space-science

      [–]gcruzatto [スコア非表示]  (8子コメント)

      Bad news for the residents of that solar system though

      [–]TaylorWK [スコア非表示]  (7子コメント)

      They're most likely already dead

      [–]matheson14 [スコア非表示]  (5子コメント)

      Well yea, I'm. Not sure how far away this is but if it's more than 5 light years away it has already exploded and we're just waiting for its light to reach us.

      [–]kennerly [スコア非表示]  (0子コメント)

      It's 1800 light years away.

      [–]cycl1c [スコア非表示]  (3子コメント)

      Eh you were close. It's 642.5 light years away

      [–]QuasarSandwich [スコア非表示]  (2子コメント)

      u/kennerly just commented above you that "it's 1,800 light years away": that's quite a discrepancy. Wikipedia is on your side, with 640 light years - kennerly where did you get your figure from?

      [–]gcruzatto [スコア非表示]  (0子コメント)

      true.. what I meant was they did learn the news at one point

      [–]SingsWithDucks [スコア非表示]  (2子コメント)

      You can see the following planets with the naked eye: Venus, Jupiter, Saturn and Mars. They appear like stars but don't twinkle as much.

      But my all time favourite night sky object is the Orion constellation and the the Orion Nebula. It just appears as a dim smudge to the naked eye, but it's one of the most interesting regions in our galaxy. New stars are being born here and some scientists also believe there is a black hole in there, which explains the erratic movements of the stars.

      [–]almosttan [スコア非表示]  (1子コメント)

      I'm not sure if you're the right person to ask or someone will chime in, but if I wanted to get an entry-level telescope and maybe snap photos through it without spending a whole lot, what are some models I could look at?

      [–]Reddit_Grayswandir [スコア非表示]  (1子コメント)

      Do you have vision issues? Because I do and I can't directly look at stars and see them, but I can with some planets when they're really bright.

      [–]sillymerricat [スコア非表示]  (0子コメント)

      Like the movie Another Earth!

      [–]draculamilktoast [スコア非表示]  (0子コメント)

      If that happened on a regular enough basis it wouldn't be as special though. You can still see the milky way, falling stars, and other planets (although they look a bit like stars) with your bare eyes.

      コメントをもっと表示する (3 返事)

        [–]Zerhaker [スコア非表示]  (0子コメント)

        We would all be worshipping the gassy bird god

        [–]omegarion23 [スコア非表示]  (0子コメント)

        If I could see anything naked with my eyes I'd be stoked.

        [–]Morphie 1 ポイント2 ポイント  (0子コメント)

        But would you actually see it? Or is it a bit like the milky way where you can only see it if it's really dark.

        [–]steve_doom [スコア非表示]  (3子コメント)

        Our neighbourhood is rather boring, I wish we were closer to something like the above or closer to a nebula or the galactic core.

        [–]HStark [スコア非表示]  (2子コメント)

        I bet it's a lot safer out here in the boonies. The less boring a cosmic neighborhood is, the more attention it will have from intelligent extraterrestrial life. Humans, with our passion to explore, probably get lots of extra time to advance our technology without being noticed here in this run-of-the-mill solar system, before we go engage in interplanetary society.

        [–]AlwaysSunnynDEN [スコア非表示]  (0子コメント)

        True. We're like the happy little tribe that gets wiped the fuck out once first contact is made.

        [–]pwasma_dwagon 1 ポイント2 ポイント  (0子コメント)

        So its kinda big?

        [–]squiznard [スコア非表示]  (0子コメント)

        I've always wondered something similar and incredibly imteresting: what if we had more than one moon? Maybe a green or a blueone? Or maybe were in a closer proximity to other planets. Imagine how different religion and mythology would be if we had 2 suns or even 3! The world as we know it would be an entirely different place

        [–]glenstortroen [スコア非表示]  (0子コメント)

        It would take us probably a long time before we discovered that things as small as our human selves even existed.

        コメントをもっと表示する (2 返事)

          [–]RaptorJesus5 264 ポイント265 ポイント  (23子コメント)

          Great photo. I do see a chubby Dolphin head with the nose along the left side tho haha

          [–]mortiphago 11 ポイント12 ポイント  (0子コメント)

          agreed, this should be renamed to Chubby Dolphin.

          [–]betrdaz 39 ポイント40 ポイント  (8子コメント)

          I see a sensual hand pinched around a grain of pink Himalayan salt about to be released to roll down the forearm and land gently but firmly on a delicious ribeye.

          [–]amishninja46 [スコア非表示]  (7子コメント)

          like this?

          [–]alexnader [スコア非表示]  (0子コメント)

          I honestly don't know what I expected.

          [–]ProfDrCmdrChang [スコア非表示]  (2子コメント)

          Before I clicked I thought, "He's referencing the salt guy, but it'd be hilarious if it was Peyton Manning instead."

          I was pleasantly surprised that it's still one of those two things.

          [–]adaaaaaaaam87 14 ポイント15 ポイント  (2子コメント)

          That's Kirby sucking in all the stars. Duh

          [–]bbjames84 2 ポイント3 ポイント  (0子コメント)

          I see a dog in a space suit...

          [–]Georgia_Ball 4 ポイント5 ポイント  (0子コメント)

          So long, and thanks for all the fish

          [–]bigtimber13 [スコア非表示]  (0子コメント)

          Chubby Dolphin....100% agree

          [–]HypesReal [スコア非表示]  (0子コメント)

          I see King Boo trying to hug a star that's in the top left corner.

          [–]JayBanditos [スコア非表示]  (0子コメント)

          I see the back of Yodas head

          コメントをもっと表示する (1 返事)

            [–]ThingsAndStuff5 45 ポイント46 ポイント  (19子コメント)

            So it's not other stars that make up the bubble layer but it's debris?

            [–]ItsZeT 27 ポイント28 ポイント  (1子コメント)

            I'd say gas since its luminescent (not sure if heat is involved)

            [–]SelfAwareMolecules 23 ポイント24 ポイント  (13子コメント)

            The ejecta is made of whatever the outer layers of the star that exploded were. Mostly hydrogen, helium, carbon, oxygen, and some other things.

            [–]calste [スコア非表示]  (11子コメント)

            Yep. But it hasn't exploded yet. It's a very massive star that has stellar winds so powerful that is shedding the outer layers of is atmosphere. Someday it will explode in a supernova.

            [–]SelfAwareMolecules [スコア非表示]  (2子コメント)

            Oh I did not realize this ejecta was from stellar wind mass loss. Interesting...

            [–]calste [スコア非表示]  (1子コメント)

            Supernova remnants are often more ragged in their appearance, and may be hourglass shaped. But that's not always the case so I always look for more information on the nebula to find out where it came from.

            [–]SelfAwareMolecules [スコア非表示]  (0子コメント)

            I know, I'm an astronomy graduate student. I just assumed :)

            [–]Racionalus [スコア非表示]  (2子コメント)

            Don't pretty much all main sequence stars eject their outer layers towards the end of their lifetime? I know our Sun will after burning up all its helium as a red giant and before turning into a white dwarf...

            [–]calste [スコア非表示]  (1子コメント)

            Stars that don't explode do eject their outer layers. But massive stars don't necessarily do this. Some, like this one, lose their outer atmosphere due to their stellar winds. Others explode while they are still completely intact.

            [–]Racionalus [スコア非表示]  (0子コメント)

            Oh okay. That's obvious now, thanks!

            Edit: But is this a planetary nebula? Because I thought stars that create a planetary nebula don't go supernova.

            Edit 2: Nvm, it's not a planetary nebula because the star is too massive to become a white dwarf. The nebula is actually material from previous phases of evolution blown away by the strong stellar winds of the current pre-supernova supergiant.

            Source

            コメントをもっと表示する (5 返事)

              [–]swaqrazzer [スコア非表示]  (0子コメント)

              So is this thing moving? And what would happen if per say it were to ram into earth? Just curious yknow

              [–]Mediterrr 2 ポイント3 ポイント  (2子コメント)

              It's actually ionized oxygen that's been mapped to the color blue.

              [–]ThingsAndStuff5 [スコア非表示]  (1子コメント)

              Ohh, oxygen. Yep there's aliens in that bubble.

              [–]AsSpiralsInMyHead [スコア非表示]  (2子コメント)

              Astrophysicist herr. What's happened in this picture is that a star went into hyperactivity and shed a layer away from it into space at almost half the speed it was traveling, while traveling to the north-west, as is visible in this photo. The area where the cone sits on the sphere, like a dunce hat, contains the path the star is taking through space.

              [–]mickthebarman [スコア非表示]  (1子コメント)

              Might just be the acid talking, but to me it looks like the head of a dolphin.

              [–]Amefarser [スコア非表示]  (0子コメント)

              Was coming here to say the same thing minus the acid.

              [–]h8speech 19 ポイント20 ポイント  (14子コメント)

              More information via NASA.

              [–]Patrickd13 11 ポイント12 ポイント  (0子コメント)

              Looks a lot like the nuclear explosion bubble, guess that's what it is in simple terms

              bubble

              [–]smokecat20 [スコア非表示]  (2子コメント)

              Could there be a black hole at the top left area? What's causing the gas to look like that?

              [–]JustMeaningless [スコア非表示]  (0子コメント)

              The first thing that popped into my head after taking a gander at this awesome picture thing here above with the stars and stuff is that rick and morty moonmen music videotape.

              [–]DJK695 [スコア非表示]  (0子コメント)

              hah this is all I see...

              http://vignette2.wikia.nocookie.net/mario/images/9/98/BooMP8.png/revision/latest?cb=20140421045236

              [–]bandgeekchic 5 ポイント6 ポイント  (1子コメント)

              amazing photo. I won't lie though, I thought it said "sharpies" at a glance (didn't see what subreddit this was in at first), and I was like how the shit did someone do that with just sharpies. I am not a smart person.

              [–]DirtyHamburger [スコア非表示]  (0子コメント)

              There is a theory that other civilizations may have developed the ability to capture all the energy coming from a star, essentially building a container around it. The container is called a Dyson Sphere (no relation to the vacuum guy), I could see it looking something like this picture.

              [–]Adamplex_Gaming [スコア非表示]  (2子コメント)

              Correct me if I'm wrong but aren't most images of celestial objects colored so because it's how they're interpreted by the radio-telescope that picks them up?

              In actuality, while the physical shape would remain (because it exists physically), it could actually be INVISIBLE to the naked eye because we can't perceive certain spectrums. Not to me room some of these are made up entirely of radiation, another thing we typically can't see with our naked eyes. What you see in most space photos are often colored so by the teams that capture them or are colored so because that's how the telescope interprets them into imagery.

              Not just a matter of spectrum, but also that some of these objects are made up of clouds and gasses in the trillions of degrees. Having another object so hot, so nearby could have a lasting effect on our solar system. It may be beautiful but it could very well be the reason why humans never come to be in the first place.

              Space is beautiful... And extremely lethal. It harbors no conceivable notion of pity or love, it just continues to be, in all its fullness and nothingness.

              [–]bubsd [スコア非表示]  (1子コメント)

              "the glow of ionized oxygen atoms mapped to a blue hue"

              so I assume this means it is outside our visible range and mapped into it.

              [–]McTitForTat 4 ポイント5 ポイント  (0子コメント)

              This is how i picture consciousness outside a body. A bit similar to that neuron found around mice brains. http://www.nature.com/news/a-giant-neuron-found-wrapped-around-entire-mouse-brain-1.21539

              [–]reptiliandude [スコア非表示]  (0子コメント)

              "Idiots. I've been wearing protection the last 6000 years, and I had to toss it away somewhere." ---God

              [–]Noderoni 0 ポイント1 ポイント  (0子コメント)

              Is it me or it looks like its getting sucked into something located in the top left corner of the image?

              [–]wordsmitty [スコア非表示]  (0子コメント)

              Serious. When I see photographs like this with a spherical bubble or cloud and a star towards the middle I always wonder: is the bubble from that star? Or is it just a coincidence and you can't see the star anymore?

              [–]bubsd [スコア非表示]  (1子コメント)

              In this photo, are the bigger, brighter stars in the foreground and The Bubble in the background, or vice versa?

              [–]Myscurious [スコア非表示]  (0子コメント)

              "Guys, let's build a billion dollar rocket so we can pop the space bubble!"

              コメントをもっと表示する (23 返事)